From Longman Dictionary of Contemporary Englishdunkdunk /dʌŋk/ verb1[transitive]DF to quickly put something into a liquid and take it out again, especially something you are eatingJill dunked her ginger biscuit in her tea.I dunked my head under the water and scrubbed at my hair.► see thesaurus at put2DSS[transitive] American English to push someone under water for a short time as a joke syn duck British English3DSO[intransitive, transitive] to jump up by the basket and throw the ball down into it in basketball → dunk for applesat apple(3), → slam dunk —dunk noun [countable]→ See Verb table